Laurier, Washington has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.3 °C (low) to 14.8 °C (high). Annual precipitation averages 523.2 Millimeters. Laurier is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.8 °C | -0.2 °C | 53.59 mm |
| February | -4.9 °C | 3.4 °C | 33.02 mm |
| March | -1.9 °C | 9.6 °C | 44.96 mm |
| April | 1.3 °C | 15.6 °C | 43.94 mm |
| May | 5.6 °C | 20.9 °C | 58.42 mm |
| June | 8.9 °C | 24.2 °C | 61.98 mm |
| July | 11.6 °C | 29.7 °C | 30.99 mm |
| August | 11.1 °C | 30.1 °C | 17.27 mm |
| September | 7 °C | 24.3 °C | 23.62 mm |
| October | 1.9 °C | 14.2 °C | 40.64 mm |
| November | -1.9 °C | 5.2 °C | 51.05 mm |
| December | -5.5 °C | 0 °C | 63.75 mm |
| Annual | 2.3 °C | 14.8 °C | 523.23 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |